| 5120-00-189-2989 | 80244 | GENERAL SERVICES ADMINISTRATION FEDERAL SUPPLY SERVICE |
| A-A-2477 | 58536 | FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
| DH 0056 | 01DJ4 | AMPCO PARTNERS, LTD. |
| L-7 | 07914 | GARRETT INDUSTRIAL SUPPLY CO |
| L-7 | 61452 | NGK METALS CORPORATION DBA N G K BERYLCO |
| L-7 | 70787 | CABOT CORP ALUMINUM MASTER ALLOY BUSINESS UNIT |
| W-1050-D | 01DJ4 | AMPCO PARTNERS, LTD. |
| W-1050-D | 03306 | AMPCO METAL INC. DBA AMPCO METAL INC |
| NC1700-10 | 35301 | DRESSER INDUSTRIES INC LEROI DIV |
| NC3110-347 | 35301 | DRESSER INDUSTRIES INC LEROI DIV |
| L-7-2557 | 61452 | NGK METALS CORPORATION DBA N G K BERYLCO |
| L-7-2557 | 70787 | CABOT CORP ALUMINUM MASTER ALLOY BUSINESS UNIT |
| MIL-K-21120 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |